Published May 5, 2017 at 2:22 PM

Receive the latest local updates in your inbox

The Sonoma County Sheriff's Office is investigating a deputy-involved shooting in Cotati. (May 5, 2017)

A Sonoma State University police officer shot a 22-year-old domestic violence suspect in Cotati early Friday, Sonoma County sheriff's officials said.

As the bars in downtown Cotati were closing around 2 a.m., several fights broke out and Cotati police requested backup from campus police.

Four women told officers near the Plaza that, when they tried to break up a physical fight between a man and woman, the man had pointed a gun at one of their heads and threatened to kill her if they didn't leave, Sonoma County sheriff's Sgt. Spencer Crum said.

The officers then followed gunshots they heard nearby and collected four handgun casings, but did not find the victim or suspect.